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Bar's Leaks Rear Main Seal Repair, 16.9 oz

4.2 4.2 out of 5 stars 2,421 ratings

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Brand Bar's Leaks
Package Information Bottle
Liquid Volume 16.9 Fluid Ounces
Item Weight 1.1 Pounds

About this item

  • Seals timing cover, cam seal, rear main and other hard to stop oil leaks
  • Add to engine oil
  • Specifically designed to seal rear main leaks, but also works better than a conventional stop leak on all other leaks
  • Add entire bottle of Rear Main Seal Repair to engine crankcase (where you add oil) at or between oil changes. Do not overfill. Most leaks will stop within 100 miles or 2 days of driving
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Bar's Leaks Rear Main Seal Repair, 16.9 oz
Bar's Leaks Rear Main Seal Repair, 16.9 oz
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Price$9.75-38% $37.28
List:$59.99
$36.99$23.99
Delivery
Get it as soon as Monday, Mar 25
Get it as soon as Monday, Mar 25
Get it as soon as Monday, Mar 25
Customer Ratings
Easy to use
4.5
4.8
4.4
Mileage
3.9
4.4
3.8
Value for money
3.9
4.4
3.7
Sold By
Amazon.com
Amazon.com
doxa-worldwide
Highflyer214
liquid volume
16.9 fluid ounces
16.9 fluid ounces
8 fluid ounces
32 fluid ounces
weight
1.1 pounds
16.9 ounces
0.01 ounces
2 pounds

From the manufacturer

LEGENDARY PERFORMANCE FORMULAS Since 1921
Bars leaks rear main seal repair

Does Your Vehicle Leak Oil?

If Yes, then You've Navigated to the Right Place. Bar's Leaks has got You Covered.

This product works in two ways to help solve most any seal type leak. 1) The seal restorer additive restores seal size, flexibility and elasticity lost due to engine heat, age and high mileage. 2) The seal polymer works by building a polymeric film around the rear main seal and also filling in any groove worn into the crankshaft by the seal.

What are the symptoms of a rear main seal leak?

Depending on the severity of the leak the first thing you may notice is the oil level going down. The next thing that happens is spotting, where you will find oil spots, located on the driveway or garage.

Will Bar’s Leaks Rear Main Seal Repair work on other oil leaks?

Yes. Even though it is specially designed to seal rear main leaks, it also works better than a conventional stop leak on all other engine oil leaks. This includes the timing cover seal, cam seals, O-rings and other seals and gaskets.

Questions to Ask Yourself?

  • Is my oil level low?
  • Is the leaking fluid dark and or golden brown?
  • Is my engine getting hot or running rough?
  • Do I really want to pay for an expensive mechanic?
  • If you answered YES to any of these questions than Bar's Leaks Enigne Oil Stop Leak is for you.
Low Oil Level? Oil Leak Problem? Hearing Loud Sounds from the Engine? Temperature Warning Light?
Customer Reviews
4.2 out of 5 stars
2,421
4.0 out of 5 stars
300
4.3 out of 5 stars
2,164
4.3 out of 5 stars
281
Identify the Symptoms My engine is reading low oil levels and may be leaking. Black or dark golden brown spots or puddles beneath my car. I'm hearing a ticking or knocking sound coming from the top of my engine. I have a temperature warning light or temperature gauge is at high end.
Best Solution Bar's Leaks Rear Main Seal Repair Concentrate can stop an oil leak before it can lead to a unplanned costly repair down the road. An oil leak may start out small, but can lead to a unplanned costly repair down the road. Use Bar's Leaks Main Seal Motor Oil Leak Repair to stop leaks and continue on down the road. Bar's Leaks Engine Repair Bar's Leaks Cooling System Repair
Alternative Solutions Bar's Leaks Main Seal Motor Oil Leak Repair Bar's Leaks Rear Main Seal Repair Concentrate Bar's Leaks Main Seal Motor Oil Leak Repair Bar's Leaks Liquid Aluminum Stop Leak
High Mileage Engine Repair Stop Leak 1010 Engine Main Seal Repair Rislone One Seal Stop Leak Oil Seal Engine Oil Repair
High Mileage Engine Repair 1000 Engine Oil Stop Leak Concentrate 1010 Rear Main Seal Repair 1040 One Seal Stop Leak 1334 Oil Seal Engine Oil Burning & Leak Repair OS-1
Customer Reviews
4.3 out of 5 stars
2,164
4.2 out of 5 stars
717
4.2 out of 5 stars
2,421
4.0 out of 5 stars
76
4.1 out of 5 stars
2,885
Small Oil Leaks – Need to Add Oil 1 X per Month Standard Standard Standard Standard Best
Medium Oil Leaks – Need to Add Oil 1 X per Week Standard Standard Best
Large Oil Leaks – Need to Add Oil 1 X per Day Best
Smoking – Blue Smoke from Exhaust Standard Best
Oil Consumption – Losing Oil Between Oil Changes Best
Engine Noise – Ticking Lifter, Chatter Best
Loss of Compression – Engine Blow-by Best
Low Oil Pressure Best
Hardened Valve Seals Best
Worn Valve Guides Best
Bar's Leaks logo

Made in the United States

Each individual Bar’s Leaks product is formulated and manufactured right here in the U.S.A. We’re committed to creating fast and affordable products that fit perfectly into your lifestyle and budget. Choose Bar’s Leaks, so you can discover just how simple automotive maintenance can be when you have the right tools.

Bar’s Leaks. Stop Leaks. Not Life.

Bar’s Leaks is more than just a stop-leak company

We are a team of enthusiasts and experts who create memorable experiences with each and every one of our customers. With over 75 years of experience in helping everyday automobile owners repair leaks, we have the track record of success and long history that demonstrates our commitment and passion to helping drivers of all experience levels. You’ll see that our passion shines through in everything we do.

Product Description

Have you noticed oil leaking from your car lately? Many car owners fear the puddle they see forming under their vehicles, and many worry about the time and cost to make it go away. That leak might be due to worn or dried seals. There’s no need to worry or spend your money on a costly repair bill, however. Our Bar’s Leaks Concentrated Rear Main Seal Repair quickly and safely restores those seals so you can get back on the road. Bar’s Leaks is the leader that specializes in chemical solutions for rear main seal leaks and other automotive issues. Our products are effective and affordable. And they’re easy to use, too. If you know how to pop the hood on your car, you can install our rear oil seal solution. We design our products for ease of use, because a good solution isn’t very helpful to everyday drivers if they can’t use it. At Bar’s Leaks, we do everything we can to get you back on the road in good condition just as quickly as possible, by offering rear main seal leak products and much more. Most rear main seal leaks are caused by a combination of normal wear in the crankshaft and seal combined with the drying, hardening and shrinking of the main seal. Bar’s Leaks Concentrated Rear Main Seal Repair restores the seal to like-new condition, and also contains additives to stop leaks in severely worn seals and crankshafts. Not to mention, it works with ALL gasoline and diesel engines using conventional, high mileage and synthetic oil. We’ve gone to great lengths to ensure that our rear oil seal solution is working for you in all possible ways. You can count on us for a rear main seal leak that takes care of your problems and helps prevent future leaking. You can trust that our products are the fastest, safest way to get your show back on the road — we’ve been proving that since 1947.

Product information

Technical Details

Additional Information

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.

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Bar's Leaks Rear Main Seal Repair, 16.9 oz


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What's in the box

  • One bottle Bar's Leaks Rear Main Seal Repair
  • Product guides and documents

    Looking for specific info?

    Customer reviews

    4.2 out of 5 stars
    4.2 out of 5
    2,421 global ratings

    Customers say

    Customers have mixed opinions about the quality, value, and leakage of the machine lubricant.

    AI-generated from the text of customer reviews

    4 customers mention4 positive0 negative

    Customers find the machine lubricant easy to use and pour.

    "Easy to pour." Read more

    "...but, the leak has stopped. awesome, inexpensive, easy-to-use product. definitely worth a try." Read more

    "...Easy to use though." Read more

    "easy to use" Read more

    111 customers mention42 positive69 negative

    Customers are mixed about the leakage of the machine lubricant. Some mention that there was almost no leak after using it on a 2000 Chrysler Cirrus with the Mitsubishi motor V6. However, others say that the oil still leaks, but it slowed down.

    "...After a week, the leak was barely noticable, just the bottom of the transmission housing felt a little oily, but no puddle/stains in the driveway...." Read more

    "I had to do two treatments, but I believe it has definitely stopped my oil leak" Read more

    "Well it sure slowed the leak down a lot. It’s a pretty bad leak so I’m getting another bottle and hopefully it stops it completely." Read more

    "...Great product! No leaking at all." Read more

    104 customers mention54 positive50 negative

    Customers are mixed about the quality of the machine lubricant. Some mention that it works great, while others say that it didn't work at all for them.

    "I love this product. Worked perfectly on my audio q5 on consumption." Read more

    "...1: Only oil goes in the crankcase, nothing else#2: Snake oil does not work, especially for a long term solution, fix the real problem instead..." Read more

    "...I tried this and it works extremely well. NO sign of any issues at all, other than the oil is not on the pavement or my garage floor...." Read more

    "Didn’t work for me" Read more

    23 customers mention13 positive10 negative

    Customers are mixed about the value of the machine lubricant. Some mention it's great value, cheap enough to try again, and saves you money on expensive repair. However, others say that it'll waste your money on an expensive repair and is useless.

    "...Does not seem to hurt anything and the price was great." Read more

    "Product doesn’t work on my GMC Yukon it was total waste of money" Read more

    "...But I have had no issue for 6 months. WORTH EVERY PENNY" Read more

    "...oil leak and it failed it's just a lot of hype and bs it's just a waste of money." Read more

    Top reviews from the United States

    Reviewed in the United States on April 27, 2014
    Size: Pack of 1Verified Purchase
    292 people found this helpful
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    Reviewed in the United States on February 13, 2024
    Size: Pack of 1Verified Purchase
    Reviewed in the United States on July 3, 2023
    Size: Pack of 1Verified Purchase
    4 people found this helpful
    Report
    Reviewed in the United States on February 26, 2024
    Size: Pack of 1Verified Purchase
    Reviewed in the United States on March 14, 2024
    Size: Pack of 6Verified Purchase
    Reviewed in the United States on March 5, 2024
    Size: Pack of 1Verified Purchase
    Reviewed in the United States on January 27, 2024
    Size: Pack of 1Verified Purchase
    Reviewed in the United States on February 10, 2024
    Size: Pack of 1Verified Purchase

    Top reviews from other countries

    Translate all reviews to English
    Jake
    5.0 out of 5 stars It worked!
    Reviewed in Canada on February 9, 2024
    Size: Pack of 1Verified Purchase
    F150 fan
    4.0 out of 5 stars Good price for a good quality product
    Reviewed in Canada on July 23, 2022
    Size: Pack of 1Verified Purchase
    Arian
    5.0 out of 5 stars It worked
    Reviewed in Canada on January 27, 2024
    Size: Pack of 1Verified Purchase
    Adam Little
    3.0 out of 5 stars not sure if its as good as advertised
    Reviewed in Canada on July 21, 2023
    Size: Pack of 1Verified Purchase
    Pierres
    5.0 out of 5 stars Anti fuite
    Reviewed in Canada on November 6, 2023
    Size: Pack of 1Verified Purchase